README

Shopping Cart library for Laravel 5 that uses database instead of sessions to store carts.

Features

• Cart for guest users
• Cart for logged in users
• Guest Cart is merged with User Cart when logged in
• Singleton Cart instance to avoid unnecessary database queries. But also possible to avoid signleton cart if needed.
• Built on top of Eloquent Model, so easily extendable and all eloquent methods can be used.
• Multiple instances of cart
• Schedule expired carts for deletion

Installation

1. Edit your project's composer.json file to require hassansin/DBCart.

   "require": {
       "hassansin/dbcart": "dev-master"
   }

2. Then install dependecies with composer command:

    composer update
   

3. Next, add a new provider to the providers array in config/app.php:

   'providers' => [
       //...
       Hassansin\DBCart\CartServiceProvider::class,
       //...
   ],

4. Then, publish database migrations and run migration:

   php artisan vendor:publish --provider="Hassansin\DBCart\CartServiceProvider" --tag=migrations
   php artisan migrate

Configuration

Optionally, you can publish package config file:

php artisan vendor:publish --provider="Hassansin\DBCart\CartServiceProvider" --tag=config

Now, update config/cart.php if required

Usage

Get Cart Instance:

Get the current cart instance. It returns a singleton cart instance:

$cart = app('cart'); //using app() helper

or,

$cart = App::make('cart');

alternatively, you can avoid singleton instance and use the model class to load the cart instance from database everytime:

use Hassansin\DBCart\Models\Cart;
//...
$cart = Cart::current();

The idea of using singleton cart is that the cart object will be available globally throughout your app (e.g. controllers/models/views/view composers etc) for a single request. Also as you manipulate cart items, $cart->item_count and $cart->total_price would get updated.

Add an Item: $cart->addItem($attributes)

$cart->addItem([
    'product_id' => 1,
    'unit_price' => 10.5,
    'quantity' => 1
]); 

which is equivalent to $cart->items()->create($attributes)

Get Items: $cart->items

Since $cart is eloquent model instance, you can use any of the eloquent methods to get items

$items = $cart->items // by dynamic property access
$items = $cart->items()->get()  
$items = $cart->items()->where('quantity', '>=', 2)->get()

Update an Item: $cart->updateItem($where, $attributes)

$cart->updateItem([
    'id' => 2
], [
    'product_id' => 1,
    'unit_price' => 10.5,
    'quantity' => 1
]); 

which is equivalent to $cart->items()->where($where)->first()->update($attributes)

Remove an Item: $cart->removeItem($where)

$cart->removeItem([
    'id' => 2
]); 

which is equivalent to $cart->items()->where($where)->first()->delete()

Clear Cart Items: $cart->clear()

Remove all items from the cart

$cart->clear(); 

Checkout cart: $cart->checkout()

This method only updates status and placed_at column values. status is set to pending

$cart->checkout();

Move item(s) between carts:

To move all items from one cart to another cart instance:

$cart = app('cart');
$wishlist = app('cart', ['name' => 'wishlist']);

//move all wishlist items to cart
$wishlist->moveItemsTo($cart);

To move a single item between carts:

$cart = app('cart');
$wishlist = app('cart', ['name' => 'wishlist']);

//move an wishlist item to cart
$item = $wishlist->items()->where(['product_id' => 1])->first();
$item->moveTo($cart);

Get Cart Attributes

$total_price = $cart->total_price; // cart total price
$item_count = $cart->item_count; // cart items count
$date_placed = $cart->placed_at; // returns Carbon instance

Cart Statuses

Supports several cart statuses:

• active: currently adding items to the cart
• expired: cart is expired, meaningful for session carts
• pending: checked out carts
• completed: completed carts

use Hassansin\DBCart\Models\Cart;

// get carts based on their status: active/expired/pending/complete
$active_carts = Cart::active()->get();
$expired_carts = Cart::expired()->get();
$pending_carts = Cart::pending()->get();
$completed_carts = Cart::completed()->get();

Working with Multiple Cart Instances

By default, cart instances are named as default. You can load other instances by providing a name:

$cart = app('cart'); // default cart, same as: app('cart', [ 'name' => 'default'];
$sales_cart = app('cart', [ 'name' => 'sales']);
$wishlist = app('cart', [ 'name' => 'wishlist']);

or, without singleton carts:

use Hassansin\DBCart\Models\Cart;
//...
$cart = Cart::current();
$sales_cart =  Cart::current('sales');
$wishlist =  Cart::current('wishlist');

To get carts other than default:

$pending_sales_carts = Cart::instance('sales')->pending()->get();

Delete Expired Carts:

The guest carts depend on the session lifetime. They are valid as long as the session is not expired. You can increase session lifetime in config/session.php to increase cart lifetime. When a session expires, a new cart instance will be created in database and the old one will no longer be used. Over time, these expired carts could pile-up in database.

Laravel Task Scheduler comes to the rescue. To enable scheduler just add following to the crontab in your server:

* * * * * php /path/to/artisan schedule:run >> /dev/null 2>&1 

That's it. The module will now check for expired carts in every hour and delete them. This won't affect the carts for loggedin users.

Other features:

Get Cart User: $cart->user

Get Item Product: $item->product

Is Cart Empty: $cart->isEmpty()

If an item exists in cart: $cart->hasItem(['id' => 10])

Expire the cart: cart->expire();

Set to completed status: $cart->complete();

Extending Cart Model

It's easy to extend DBCart. You can extend base DBCart model and add your own methods or columns. Follow these steps to extend the cart model:

1. Create a model by extending Hassansin\DBCart\Models\Cart:

   namespace App;
       
   use Hassansin\DBCart\Models\Cart as BaseCart;
   
   class Cart extends BaseCart
   {
       //override or add your methods here ...
   
       public function getSubTotalAttribute(){
           return $this->attributes['total_price'];
       }
       public function getGrandTotalAttribute(){
           //taking discount, tax etc. into account            
           return $this->sub_total - $this->discount;
       }
       
   }

2. Update cart_model in config/cart.php with the fully qualified class name of the extended model.

   'cart_model' => App\Cart::class,

3. That's it, you can now load the cart as usual:

   $cart = App::make('cart');

You can also follow the above steps and create your own CartLine model by extending Hassansin\DBCart\Models\CartLine. Be sure to update config/cart.php to reflect your changes.